braille vs bumps

braille

adj
  • Of, relating to or written in braille. 

noun
  • A system of writing in which letters and some combinations of letters are represented by raised dots arranged in three rows of two dots each and are read by the blind and partially sighted using the fingertips. 

verb
  • To write in, or convert into, the braille writing system. 

  • to identify something by touch. 

bumps

noun
  • The ritual tossing of someone into the air to celebrate their birthday. 

How often have the words braille and bumps occurred in a corpus of books? (source: Google Ngram Viewer )